upstream timed out (10060: A connection attempt failed because the connected
party did not properly respond after a period of time, or established
connection failed because connected host has failed to respond) while
reading response header from upstream, client: 127.0.0.1, server:
dev.flow3.local, request: "GET / HTTP/1.1", upstream: "fastcgi://
127.0.0.1:9000", host: "dev.flow3.local"

I'm assuming one the tons of fcgi params can help. but which one